Traditionally, protein in the diet has been considered mainly as
a source of essential amino acids for cellular maintenance, growth
and energy. More recently, dietary proteins have been recognised
additionally for their bioactive properties once hydrolysed by proteases
in the gastrointestinal tract following consumption. Bioactive
peptides are defined as being short amino acid sequences
that possess one or more biologically significant activities when
taken up into the body (Fitzgerald, Murray, & Walsh, 2004;
Lafarga & Hayes, 2014). These peptides usually range from two to
30 amino acids in length (Clare & Swaisgood, 2000; Di Bernardini
et al., 2011). Their small size makes the peptide sequences less